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author:

Wu, J. (Wu, J..) [1] | Lan, J. (Lan, J..) [2] | Wang, R. (Wang, R..) [3] | Cheng, C. (Cheng, C..) [4] | Wang, W. (Wang, W..) [5] | Deng, H. (Deng, H..) [6] | Zheng, Q. (Zheng, Q..) [7] | Wei, M. (Wei, M..) [8] | Li, Y. (Li, Y..) [9] | Cheng, S. (Cheng, S..) [10]

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Scopus

Abstract:

Encapsulation is a critical strategy for mitigating the instability of perovskites, which remains the primary challenge for their commercialization. Traditional encapsulation adhesives, such as ethylene vinyl acetate and epoxy resin, are constrained by high-temperature processes and potential chemical reactions that can impair the efficiency of perovskite devices. The use of vacuum silicone grease, primarily composed of polydimethylsiloxane (PDMS), not only shields the perovskite devices from moisture and oxygen but also significantly enhances their power conversion efficiency from 23.91% to 25.34%. Further investigations reveal that this improvement can be attributed to the formation of coordination bonds between the oxygen atoms in PDMS and lead within the perovskite structure. This mechanism boosts efficiency and inhibits the formation of Pb0 defects, significantly contributing to efficiency loss and instability. A ten-fold increase in stability is observed at ≈90% humidity, underscoring its potential as a low-temperature, non-damaging, and effective encapsulation method for enhancing the stability and performance of perovskite solar cells. © 2025 Wiley-VCH GmbH.

Keyword:

defect suppression encapsulation PDMS perovskite solar cells stability

Community:

  • [ 1 ] [Wu J.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Lan J.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Wang R.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Cheng C.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Wang W.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Deng H.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Zheng Q.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 8 ] [Wei M.]Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, 350116, China
  • [ 9 ] [Li Y.]Key Laboratory for Renewable Energy Chinese Academy of Sciences Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
  • [ 10 ] [Cheng S.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China

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Source :

Advanced Functional Materials

ISSN: 1616-301X

Year: 2025

1 8 . 5 0 0

JCR@2023

Cited Count:

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ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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